Endless belt power transmission systems or components – Positive drive belt – Belt formed of rigid links
Patent
1988-09-19
1989-10-03
Bui, Thuy M.
Endless belt power transmission systems or components
Positive drive belt
Belt formed of rigid links
474212, 474215, F16G 1306
Patent
active
048713449
ABSTRACT:
A power transmission endless chain belt connecting two pulleys, including a belt body having multiple sets of link plates each set consisting of a plurality of parallel link plates, each of which has a pair of pin holes. The belt body further has multiple pins inserted into the pin holes such that the link plates of one set are pivotally connected to the link plates of the adjacent sets. The chain belt further includes multiple pairs of blocks each pair having opposed mutually rolling surfaces, each pair of blocks having an aperture through which the link plates of the corresponding set extend. The pins define first bending points of the belt. One of the pin holes formed in each link plate has a larger size than the other pin hole, and cooperates with the corresponding pin, to define a clearance therebetween. The link plates of each set are arranged such that each pin extends through one of the pair of pin holes in at least one of the link plates of each set, and the other of the pair of pin holes in the remainder of the link plates of the same set. The rolling surfaces of the multiple pairs of blocks define second bending points of the belt. Each second bending point is located between adjacent ones of the first bending points, whereby a bending pitch of the belt is equal to a distance between the adjacent first and second bending points.
REFERENCES:
patent: 1534494 (1925-04-01), Belcher
patent: 1692799 (1928-11-01), Sturtevant
patent: 1822749 (1931-09-01), Rothman
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patent: 3049933 (1959-02-01), Besel et al.
patent: 4344761 (1982-08-01), Steuer
patent: 4516963 (1985-05-01), Mott
patent: 4516964 (1985-05-01), Laster
patent: 4516965 (1985-05-01), Mott
patent: 4622025 (1986-11-01), Kern et al.
patent: 4737137 (1988-04-01), Miyaishi
Bui Thuy M.
Toyota Jidosha & Kabushiki Kaisha
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